Answers are grounded in this paper and cite their sources.
We discuss the ratio $R(s){≡}{{σ}({e}⁺{e}^{{-}}{→}hadrons)}{{σ}({e}⁺{e}^{{-}}{→}{{μ}}⁺{{μ}}^{{-}})}$ in stagnant (asymptotically free) field theories. The leading correction to the scaling limit is determined.
No takes yet. Share an insight, caveat, or question.
A. Zee (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: